Dexter is quite talented and has a keen sense for the things he wants. For example:
TV radar: It's inevitable that when we sit down to watch tv, Dexter will appear as if from nowhere, and climb onto my lab.
Nap radar: It's inevitable that whenever I lay down to take a nap, Dexter will insist on curling up beside me.
Computer radar: It's inevitable that whenever I sit down to work at the computer, Dexter will fall right in front of the keyboard...normally on my hands so that I can't do anything.
He's so needy.
Someone should tell him it's very un-catlike.